【数学Ⅱ 三角関数】 2倍角・半角の公式〜公式鬼ごっこをクリアせよ〜 【10話】

Previous Episode🎥    • 【数学Ⅱ 三角関数】 加法定理〜モラハラビデオで学ぼう〜 【9話】   This Episode's Table of Contents📝 0:00 Rules Explained 1:22 Proof of the Double-Angle Formula 4:39 Double-Angle Problem Exercises 9:24 Proof of the Half-Angle Formula and Problem Exercises ↓Book: "The World's Most Easy-God Lessons: Math in 1 Minute" Now on Sale📕 https://amzn.asia/d/c1LBrI5 #TrigonometricFunctions #DoubleAngleFormula #HalfAngleFormula